painkiller

noun

1. A drug that numbs the pain in the body.

   “Near-synonym: analgesia”

   “While taking one pill and dying is rare, dying accidentally after using painkillers inappropriately is common. […] The prescription painkiller Emily Jackson took is a respiratory depressant that slows breathing. That in combination with the alcohol, another respiratory depressant, overwhelmed her brain, which stopped giving her heart and lungs the signal to keep functioning.”